package main

import "fmt"

func main(){
	var a int
	fmt.Println("please input a:")
	fmt.Scanf("%d",&a)
	fmt.Println("you input a is:",a)

	fmt.Scan(&a)
	fmt.Println("you input a is:",a)

	fmt.Println("please input x:");
	var x int
	fmt.Scanf("%d",&x);
	fmt.Println("you input x is :",x)
}